/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: var(--navbar-height);
  padding-inline: var(--space-5);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--transition-base), border-color var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base);
}

/* Línea de energía permanente en el borde inferior: da presencia al navbar
   incluso con fondo transparente (antes de hacer scroll). */
.navbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.4), rgba(139, 92, 246, 0.3), transparent);
  opacity: 0.6;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.navbar.is-scrolled {
  background: rgba(5, 8, 22, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 0 rgba(0, 212, 255, 0.1), 0 16px 40px rgba(2, 6, 23, 0.45);
}

.navbar.is-scrolled::after {
  opacity: 0;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: var(--fs-lg);
  flex-shrink: 0;
}

.navbar-brand img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.3), 0 0 16px rgba(79, 107, 255, 0.4);
  transition: box-shadow var(--transition-base);
}

.navbar-brand:hover img {
  box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.5), 0 0 22px rgba(79, 107, 255, 0.6);
}

.navbar-brand-word {
  white-space: nowrap;
}

.navbar-brand-word span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 1.6vw, 1.75rem);
  margin-inline: auto;
  min-width: 0;
}

.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-muted);
  padding-block: var(--space-2);
  position: relative;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

/* El CTA móvil vive dentro del menú; oculto fuera de él.
   Especificidad 0,2,0 para ganar a `.btn { display:inline-flex }`. */
.nav-links .nav-cta-mobile {
  display: none;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  transform: scaleX(1);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.navbar-actions .btn {
  padding: 0.65rem 1.2rem;
  font-size: var(--fs-xs);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.nav-toggle-bars {
  position: relative;
  width: 22px;
  height: 16px;
}

.nav-toggle-bars span {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast), top var(--transition-fast);
}

.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 7px; }
.nav-toggle-bars span:nth-child(3) { top: 14px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) { top: 7px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* ===== Botones ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--fs-sm);
  min-height: 44px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #04070f;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(79, 107, 255, 0.35);
}

.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.02);
}

.btn-outline:hover {
  border-color: var(--color-primary-light);
  background: rgba(79, 107, 255, 0.08);
}

.btn-ghost {
  color: var(--color-muted);
}

.btn-ghost:hover {
  color: var(--color-text);
}

.btn-block {
  width: 100%;
}

/* ===== Tarjetas ===== */
.card {
  background: var(--color-surface-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.problem-card,
.service-card,
.solution-card,
.tech-card,
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.problem-card,
.service-card {
  padding: var(--space-6);
}

.problem-card:hover,
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(79, 107, 255, 0.4);
  box-shadow: 0 20px 44px rgba(2, 6, 23, 0.5), 0 0 24px rgba(79, 107, 255, 0.14);
}

.card-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(79, 107, 255, 0.18), rgba(0, 212, 255, 0.12));
  color: var(--color-cyan);
  margin-bottom: var(--space-4);
}

.problem-card h3,
.service-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
}

.problem-card p,
.service-card p {
  color: var(--color-muted);
  font-size: var(--fs-sm);
}

.service-card-features {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-xs);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-cyan);
}

.card-link .arrow {
  transition: transform var(--transition-fast);
}

.card-link:hover .arrow {
  transform: translateX(3px);
}

/* ===== Badges de estado ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.badge-success { color: var(--color-success); border-color: rgba(34, 197, 94, 0.35); background: rgba(34, 197, 94, 0.08); }
.badge-info { color: var(--color-cyan); border-color: rgba(0, 212, 255, 0.35); background: rgba(0, 212, 255, 0.08); }
.badge-neutral { color: var(--color-muted); }
.badge-confidential { color: var(--color-warning); border-color: rgba(245, 158, 11, 0.35); background: rgba(245, 158, 11, 0.08); }

/* ===== Formularios ===== */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 500;
}

.field-full {
  grid-column: 1 / -1;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.field input,
.field select,
.field textarea {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--color-text);
  min-height: 44px;
  /* Los inputs no se encogen bajo su ancho intrínseco dentro de flex/grid */
  min-width: 0;
  width: 100%;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-primary-light);
  background: rgba(79, 107, 255, 0.06);
  outline: none;
}

.field small {
  color: var(--color-muted);
  font-size: var(--fs-xs);
  font-weight: 400;
}

.field-error {
  color: var(--color-error);
  font-size: var(--fs-xs);
  font-weight: 400;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--color-muted);
}

.checkbox-field input {
  margin-top: 3px;
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.checkbox-field a {
  color: var(--color-cyan);
  text-decoration: underline;
}

.status-box {
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--fs-sm);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
}

.status-box.success { border-color: rgba(34, 197, 94, 0.4); background: rgba(34, 197, 94, 0.08); color: #bbf7d0; }
.status-box.error { border-color: rgba(239, 68, 68, 0.4); background: rgba(239, 68, 68, 0.08); color: #fecaca; }

/* ===== Breadcrumbs ===== */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-muted);
  margin-bottom: var(--space-6);
}

.breadcrumbs a {
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--color-cyan);
}

.breadcrumbs span[aria-hidden] {
  opacity: 0.5;
}

.breadcrumbs [aria-current="page"] {
  color: var(--color-text);
}

/* ===== FAQ ===== */
.faq-item {
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  text-align: left;
  font-weight: 600;
  font-size: var(--fs-base);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-fast);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  color: var(--color-cyan);
  border-color: var(--color-cyan);
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow);
}

.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-muted);
  font-size: var(--fs-sm);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-10) var(--space-6);
  background: var(--color-bg-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.footer-brand img {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
}

.footer-col h4 {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: var(--fs-sm);
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-muted);
  flex-wrap: wrap;
}

/* ===== Skeleton / carga ===== */
.skeleton {
  position: relative;
  overflow: hidden;
  background: rgba(148, 163, 184, 0.08);
  border-radius: var(--radius-md);
}

.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  animation: skeleton-sweep 1.6s ease-in-out infinite;
}

@keyframes skeleton-sweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

@media (prefers-reduced-motion: reduce) {
  .skeleton::after { animation: none; }
}

/* ===== Estado vacío / error ===== */
.state-box {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  color: var(--color-muted);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}

.state-box .btn {
  margin-top: var(--space-4);
}